Electronic Supplementary Information

Controlled electrodeposition of Iron oxide/Nickel oxide@Ni for

the investigation of the effect of stoichiometry and particle size on

energy storage and water splitting application

Sanjit Saha,ab J Sharath Kumar, ab Pranab Samanta,ab Naresh Chandra Murmu,ab Tapas

Kuila*ab

a Surface Engineering & Tribology Division, CSIR-Central Mechanical Engineering

Research Institute, Durgapur -713209, India

bAcademy of Scientific and Innovative Research (AcSIR), CSIR-CMERI Campus, Durgapur-

713209, India

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*Correspondence to Tapas Kuila. Tel.: +91-3436510704; Fax: 91-343-2548204

E-mail address: tkuila@gmail.com (Tapas Kuila)

Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A.This journal is © The Royal Society of Chemistry 2018

Figure 1 CV of MMO@NF0 at different scan rate

Figure 2 CV of MMO@NF1 at different scan rate

Figure 3 CV of MMO@NF2 at different scan rate

Figure 4 CV of MMO@NF3 at different scan rate

Figure 5 Variation of specific capacitance of MMO@NF0, MMO@NF1, MMO@NF2 and

MMO@NF3 with scan rate

Figure 6 Retention of specific capacitance of MMO@NF0, MMO@NF1, MMO@NF2 and

MMO@NF3 with scan rate

Figure 7 ZView fitted Nyquist plot of MMO@NF0 at different scan rate

Figure 8 ZView fitted Nyquist plot of MMO@NF1 at different scan rate

Figure 9 ZView fitted Nyquist plot of MMO@NF2 at different scan rate

Figure 10 ZView fitted Nyquist plot of MMO@NF3 at different scan rate

Figure 11 Comparison of the CV of MMO@NF1 and TRGO

Figure 12 CV of ASC at 10 mV s-1 scan rate

Figure 13 Variation and retention of the specific capacitance of ASC with different current

density.